Windows/Mac/Linux: The latest version of Firefox is available for download, and with it comes the ability to synchronize your extensions across desktops and operating systems with add-on sync (after an eternity of waiting). Firefox 11 is in line with Mozilla's new Chrome-like rapid-release schedule, and aside from a few new developer tools, add-on sync is the only major new feature available in the new version.

Once enabled, Firefox Sync will also give you the option to ensure your add-ons are available on all of your computers. In addition to add-on sync, the new version marks most add-ons compatible by default, regardless of the extension's version number—which means you don't need to rely on things like the Add-On Compatibility Reporter anymore. Developers get access to a few new tools as well in Firefox 11, including "Tilt," a 3D page inspector, and an on-the-fly CSS editor that will allow you to edit stylesheets directly in-browser.